Actuating device for cash-registers



(No Model.) 2 Sheets-Sheet 1.

G. BOEMERMANN. AGTUATING DEVICE FOR CASH REGISTERS.

No. 477,883. Patented June 28, 1892.

WITNESSES:

2 Sheets-Sheet 2.

(No Model.)

G. BOEMERMANN. AGTUATING DEVICE FOR CASH REGISTERS. No. 477,883.

Pat ted June 28, 1892.

WITNES ES:

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UNITED STATES PATENT OFFICE.

GEORGE BOEMERMANN, OF BROOKLYN, NElV YORK.

ACTUATING DEVICE FOR CASH-REGISTERS.

SPECIFICATION forming part of Letters Patent No. 477,883, dated June 28,1892. Application filed September 21, 1891. Serial No. 406,289. (Nomodel.)

To all whom it may concern:

Be it known that I, GEORGE BOEMERMANN, a citizen of the United States,and a resident of Brooklyn, Kings county,New York, have invented certainImprovements in Cash Registers and Indicators, of which the following isa specification.

My invention relates to an improvement on the cash register andindicator described in the Letters Patent No. 456,133, granted to meJuly 21, 1891, which patent may be referred to for a full understandingof those portions of the register and indicator which form no part of mypresent invention. 111 the register described in my said patent, No.456,133, there is a series of pulls, each of which corresponds to asumof money, as five cents, ten cents, fifteen cents, &c., and when thesales man receives a sum-as ten cents, for example-he draws out the pullcorresponding to or marked 10 and pushes it in again,wl1en this sum 10will be properly registered on an adding mechanism in the apparatus withwhich this pull is mechanically connected or which is operated by themovement of the pull. In the register described in my said patent theintermediate mechanism whereby the drawing out of a pull rotates thewheels of the adding mechanism to an extent corresponding exactly to thedenomination of the pull consists of a series of toes fixed on arock-shaft extending transversely over the series of pulls, one toebeing over each pull, and on each pull is an upright which, when thepull is drawn out, strikes this toe and rocks the rock-shaft to anextent due to the denomination of the pull. The rockshaft is connectedby intermediate mechanism with the wheels of the adding mechanism insuch a manner that its motion is imparted thereto. The toes are set atdifferent angles on the rock-shaft in such a manner that, although allthe pulls are moved to the same extent, they do not impart the sameamount of rocking movement to the rock-shaft. For example, pull 10 willimpart to said shaft twice as much movement as pull 5, and pull 15 willimpart to it three times as much movement as pull 5. This description Ihave deemed necessary to a clear understanding of my present invention,which has for its object a novel intermediate mechanism between thepulls and the adding mechanism,whoroby the former actuate the latter toan extent proportionate to their respective denominations.

This invention will be fully described hereinafter and its novelfeatures carefully dcfined in the claims.

In the drawings serving to illustrate my invention, Figure 1 is asectional side elevation of that portion of a cash register andindicator which embodies my improvements, the plane of the section beingindicated by the broken line was in Figs. 2 and 3; and Fig. 1 is a Viewlike Fig. 1, but showing a pull drawn out. This view merely illustratesthe operation of the parts seen in Fig. 2. Fig. 2 is a sectional frontelevation, the plane of the section being indicated by the broken line yy in Fig. 1. Fig. 3 is a sectional plan, the plane of the section beingindicated by the broken line .2 .2 in Fig. 1.

A represents the casing, which maybe constructed in the usual manner,and 1 represents the sliding pulls mounted in said frame and operatingin the ordinary way.

2 represents the wheels of the adding mechanism, mounted on a shaft 3and driven through the medium of pinions d on a shaft 5. One pinion 6 onthe shaft 5 gears with a wheel 7, mounted 011 a stud on the frame.

All of the above mechanism is substantially the same as that shownin mypatent, No. 345,692.

I willnow describe the novel mechanism I employ for driving the addingmechanism through the medium of the pulls 1.

S is a shaft mounted in suitable hearings in the frame and extendingtransversely over the pulls. On this shaft is fixed a toothed wheel 9,which gears with the wheel 7. Thus intermittent rotation of the shaft 8in one direction will impart a corresponding motion to the addingwheels.The pulls impart the required intermittent rotation to the shaft 8through the medium of mechanism which I will now describe: On the shaft8 at each pull of the series is fixed a toothed wheel or pinion 10, eachof which is adapted to gear under certain conditions with a curvedswinging toothed sector or rack 11, and each of these racks is pivotallyattached at its lower end to a swinging arm 12, which latteris pivotedat its rear end to the frame at to. As the pulls are; provided with likemechanisms I will describe minutely but one of the latter. At its freeend the arm 12 has an upturned branch 12,.

which bears a laterally-projecting stud or roller12, and when the pullis pushed in or' home, as represented in Fig. 1, this stud,-

rests on the lower portion of a cam flange or way 13 on the lower sideof the pull 1,

and the rack 11 is permitted to drop down and out of gear with thepinion 10; but; when the pull is drawn out an inclined face or step 13(see Fig. 1) on the cam-flange 13} takes under said stud 12" and liftsit, to-; gether with the rack and arm, until the teeth of the rackengage those of the pinion. This engagement is effected near thebeginning ofcommunicated to the adding mechanism be fore described, andas each pull has a uni form and limited movement,and each acts to moveits rack to an extent corresponding to. the denomination of the pull,the addingi mechanism will be moved to the proper extent by eachpull.

When the pull 1 is pushed in again, the rack does not rotate the shaft 8backward, as back rotation of this shaft is; prevented by means of aratchet-wheel let thereon and a spring-pawl 15, pivoted to the.

frame of the register.

As the pull moves:

back the rack remains in gear with the pin-i ion until the stud 12"passes down the incline, on the cam-flange 13, when the weight of theparts causes the rack to drop out of gear with.

the inion and a s rin 15, attached at one D 1 p s end to the rack and atits other end to the: arm 12, draws the rack back to its first position,where it rests against a stop. I prefer to make this back stopadjustable, for rea-,

sons that will be hereinafter explained. As

here represented it consists of a screw 16, which screws through a fixedbar 17, extend ing transversely across the frame over the pulls, and isprovided with a lock-nut 16'. When the rack is rocked or pushed forwardby the pull to the full extent, it strikes or is arrested by a frontstop, consisting of a screw 18, which screws through a bar 19 on theframe and is furnished, also, with a lock-nut.

It is essential to the proper operation of the adding mechanism of theregister that the several racks 11 shall play accurately betweenlimiting-stops and that each rack shall be swung or moved forward adistance proportioned to its denomination. For example, if we assumethat each tooth of the rack corresponds to 5, then for 15 the rack willhave a movement equal to three teeth, for 2O it will have a movementequal to four teeth, for 35 it will have a movement equal to seventeeth, and so on for all denominations. This difierenee in the movementsof the several racks may be attained in several ways. As here shown, Iattain the end by means of the adjustable-screw back stops 16, which areso set as to limit the extent of backward movement of the rack and stopthem. at various points, as clearly seen in Figs. 1 and 1.

I have, as before stated, shown only enough of the register toillustrate the operation of my present invention. The portions not shownmay be constructed like those illustrated in my former patent, to whichI have referred. If the pulls are arranged in tiers, as in my saidpatent, it will only be necessary to gear the shaft 8 of any tier to thestud-wheel 7 by the ordinary gearing mechanism, with which all workmenare familiar.

The projecting part 14 may as Well be a simple stud and the stud 11 onthe rack 11 may as well be any part of the rack arranged to project intothe path of the stud 14 on the pull. So, also, the stud 12 on the branchof the arm 12 may be simply a part of said branch or of the arm arrangedto engage the cam-flange 13.

Having thus described my invention, I claim 1. In a registeringapparatus, the combination, with a sliding pull and an adding-wheel tobe rotated by the operation of said pull, of a shaft arrangedtransversely over the pull and geared to the adding-wheel, a pinion onsaid shaft, a swinging rack adapted to gear with said pinion and to beactuated by the pull, and means,substantially as described, for puttingsaid rack into gear with said pinion when the pull is drawn out,substantially as set forth.

2. In a registering apparatus, the combination, with a sliding pullprovided with a cam 13 and stud let and an adding-wheel to be rotated bythe drawing out of the pull, of the shaft 8, arranged over the pull,mechanism which gears said shaft with the adding-wheel, a pinion 10 onsaid shaft adjacent to the pull, a swinging arm 12, provided with a studwhich engages the cam on the pull, whereby the arm is raised when thepull is drawn out, a rack or sector 11, pivotedly attached to said armand adapted to be put into gear with the pinion 10 by the raising of thearm, said rack having a stud arranged in the path of the stud 14 on thepull, a spring which retracts the rack, and a back stop for said rack.

S. In a registering apparatus, the combination, with two or more slidingpulls arranged abreast and an adding-wheel to be actuated by the drawingout of either of said pulls, of a shaft arranged transversely over saidpulls and geared to the adding-wheel, a series of IIO pinions on saidshaft, one at each pull, a series of vibrating racks 11, one for eachpull,

In witness whereof I have hereunto signed my name in the presence of twosubscribing 10 means carried by the pulls for lifting their Witnesses.

respective racks into gear with their respective pinions when the pullsare drawn out, back stops for the respective racks, andretracting-springs for the same, substantially as set forth.

GEORGE BOEMERMANN,

Witnesses:

HENRY CONNETT, HERBERT BLOSSOM.

